The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Parent entities and officers
Active 3
  • 1
    Mazzagatti, Francesco
    Director born in March 1986
    Individual (20 offsprings)
    Officer
    2020-09-02 ~ dissolved
    OF - Director → CIF 0
  • 2
    Dominus, Francesco Dixit
    Director born in October 1984
    Individual (19 offsprings)
    Officer
    2020-09-02 ~ dissolved
    OF - Director → CIF 0
  • 3
    IDEMITSU PETROLEUM UK LTD. - 2017-12-08
    PETRO SUMMIT INVESTMENT UK LIMITED - 2010-01-04
    INTREPID ENERGY C.N.S. LIMITED - 2004-05-21
    ENTERPRISE OIL PRODUCTION LIMITED - 1998-07-30
    ELF ENTERPRISE LIMITED - 1996-07-10
    TODAYMARKET LIMITED - 1993-05-18
    5th Floor Halton House, 20-23 Holborn, London, England
    Active Corporate (3 parents, 3 offsprings)
    Person with significant control
    2017-12-08 ~ dissolved
    PE - Ownership of shares – 75% or moreCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
    PE - Right to appoint or remove directorsCIF 0
Ceased 30
  • 1
    Okamoto, Kazuo
    Director born in February 1955
    Individual (1 offspring)
    Officer
    2010-01-05 ~ 2017-03-31
    OF - Director → CIF 0
  • 2
    Sugitani, Kiyoshi
    Company President born in June 1946
    Individual
    Officer
    2003-06-30 ~ 2005-08-05
    OF - Director → CIF 0
  • 3
    Matsubara, Mitsuki
    Director born in October 1957
    Individual
    Officer
    2009-11-12 ~ 2011-06-30
    OF - Director → CIF 0
  • 4
    Takeuchi, Yoshio
    Company Director
    Individual
    Officer
    1998-12-01 ~ 2005-07-28
    OF - Secretary → CIF 0
  • 5
    Nakayasu, Masahiro
    Individual (1 offspring)
    Officer
    2014-12-09 ~ 2016-10-25
    OF - Secretary → CIF 0
  • 6
    Kimura, Tatsusaburo
    Director born in November 1956
    Individual
    Officer
    2008-07-24 ~ 2009-11-12
    OF - Director → CIF 0
  • 7
    Austin, Andrew Philip
    Director born in September 1965
    Individual (10 offsprings)
    Officer
    2017-12-08 ~ 2020-09-02
    OF - Director → CIF 0
  • 8
    Umezawa, Takeo
    Company Director born in May 1944
    Individual
    Officer
    1997-10-15 ~ 1998-06-01
    OF - Director → CIF 0
  • 9
    Pegg, Garry John
    Solicitor born in April 1958
    Individual
    Officer
    1997-09-25 ~ 1997-10-15
    OF - Director → CIF 0
  • 10
    Arai, Ikuo
    Company President Sumitomo Pet born in January 1934
    Individual
    Officer
    1997-10-15 ~ 1999-07-21
    OF - Director → CIF 0
  • 11
    Satake, Akira
    Cfo
    Individual
    Officer
    2005-07-28 ~ 2008-07-24
    OF - Secretary → CIF 0
  • 12
    Doi, Takayuki
    General Manager born in September 1953
    Individual (1 offspring)
    Officer
    2002-08-21 ~ 2005-07-28
    OF - Director → CIF 0
  • 13
    Charles, Simon
    Individual
    Officer
    1997-09-25 ~ 1997-10-15
    OF - Secretary → CIF 0
  • 14
    Benmore, Richard Alan
    Director born in June 1958
    Individual (2 offsprings)
    Officer
    2017-12-08 ~ 2020-09-02
    OF - Director → CIF 0
  • 15
    Hirahara, Shogo
    Oil & Gas Exploration & Production born in February 1959
    Individual (1 offspring)
    Officer
    2012-02-07 ~ 2017-12-08
    OF - Director → CIF 0
  • 16
    Fujimagari, Tadashi
    Director born in November 1950
    Individual
    Officer
    2009-05-22 ~ 2009-11-12
    OF - Director → CIF 0
  • 17
    Katahira, Yo
    Director born in October 1954
    Individual
    Officer
    1999-03-19 ~ 2005-07-28
    OF - Director → CIF 0
  • 18
    Haba, Yasuhiro
    Managing Director born in January 1952
    Individual
    Officer
    2012-04-02 ~ 2016-05-11
    OF - Director → CIF 0
  • 19
    Nishino, Minoru
    General Manager born in April 1950
    Individual
    Officer
    1998-06-01 ~ 2002-08-21
    OF - Director → CIF 0
  • 20
    Iida, Masato
    General Manager born in October 1957
    Individual
    Officer
    2005-07-28 ~ 2007-11-21
    OF - Director → CIF 0
    2008-01-25 ~ 2009-05-22
    OF - Director → CIF 0
  • 21
    Karashima, Michiyasu
    Company President born in November 1937
    Individual
    Officer
    1999-07-21 ~ 2003-06-30
    OF - Director → CIF 0
  • 22
    Chang Kit, David Anthony
    Individual
    Officer
    2017-04-01 ~ 2017-12-08
    OF - Secretary → CIF 0
  • 23
    Tomita, Kazufumi
    Director born in March 1947
    Individual
    Officer
    2005-08-05 ~ 2005-10-28
    OF - Director → CIF 0
    2005-12-23 ~ 2007-11-21
    OF - Director → CIF 0
    Tomita, Kazafumi
    General Manager born in March 1947
    Individual
    Officer
    2008-01-14 ~ 2009-05-22
    OF - Director → CIF 0
  • 24
    Sakamoto, Katsuhiko
    Individual
    Officer
    2009-11-12 ~ 2011-03-24
    OF - Secretary → CIF 0
  • 25
    Hirano, Tadashi
    Individual
    Officer
    1997-10-15 ~ 1998-12-01
    OF - Secretary → CIF 0
  • 26
    Otani, Tsunehiko
    Director born in April 1947
    Individual
    Officer
    2005-07-28 ~ 2008-07-24
    OF - Director → CIF 0
  • 27
    Morii, Hiroaki
    Individual
    Officer
    2011-03-24 ~ 2014-12-09
    OF - Secretary → CIF 0
  • 28
    Obata, Yobun
    Company Director born in October 1952
    Individual
    Officer
    1997-10-15 ~ 1999-03-19
    OF - Director → CIF 0
  • 29
    Arikawa, Hiroshi
    Director born in August 1960
    Individual
    Officer
    2009-11-12 ~ 2012-04-05
    OF - Director → CIF 0
  • 30
    ROCKROSE UKCS4 LIMITED - now
    PETRO SUMMIT INVESTMENT UK LIMITED - 2010-01-04
    INTREPID ENERGY C.N.S. LIMITED - 2004-05-21
    ENTERPRISE OIL PRODUCTION LIMITED - 1998-07-30
    ELF ENTERPRISE LIMITED - 1996-07-10
    TODAYMARKET LIMITED - 1993-05-18
    151, 6th Floor Shaftesbury House, 151 Shaftesbury Avenue, London, England
    Active Corporate (3 parents, 3 offsprings)
    Person with significant control
    2016-04-06 ~ 2017-12-08
    PE - Ownership of shares – 75% or moreCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
    PE - Right to appoint or remove directorsCIF 0
parent relation
Company in focus

ROCKROSE UKCS6 LIMITED

Previous names
IDEMITSU UK OIL LTD. - 2017-12-08
SUMMIT UK OIL LIMITED - 2010-01-04
Standard Industrial Classification
06100 - Extraction Of Crude Petroleum
Brief company account
Please be reminded the displayed account data is older than 4 years hence might not reflect current company status.
Cash at bank and in hand
1 GBP2016-12-31
1 GBP2015-12-31
Net assets/liabilities including pension asset/liability
1 GBP2016-12-31
1 GBP2015-12-31
Number of shares allotted
Class 1 ordinary share
1 shares2016-12-31
Par Value of Share
Class 1 ordinary share
1 GBP2016-01-01 ~ 2016-12-31
Paid-up share capital
Class 1 ordinary share
1 GBP2016-12-31
1 GBP2015-12-31
Shareholder's fund
1 GBP2016-12-31
1 GBP2015-12-31

  • ROCKROSE UKCS6 LIMITED
    Info
    IDEMITSU UK OIL LTD. - 2017-12-08
    SUMMIT UK OIL LIMITED - 2010-01-04
    Registered number 03442626
    5th Floor Halton House, 20-23 Holborn, London EC1N 2JD
    Private Limited Company incorporated on 1997-09-25 and dissolved on 2022-08-30 (24 years 11 months). The company status is Dissolved.
    CIF 0
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.
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Contains public sector information retrieved at 24 April 2025 and licensed under the Open Government Licence v3.0.